Meanings of unstudied ease in English

Genevieve Maud reclined in a geranium-bed in an attitude of unstudied ease.

He was leaning back in a chair in an attitude of unstudied ease.

At all events, the statue is a fine example of apparently unstudied ease, of that consummate art which conceals itself.

He had a feeling for those formal gardens which have captured within their enclosure a moiety of nature's unstudied ease.

Before every thing else, however, let unstudied ease, I could almost add carelessness, be the marked characteristics of both your conversation and your writing.